Examples with FieldInfo org.neo4j.ogm.metadata.FieldInfo used on opensource projects

Example 26 with FieldInfo

use of org.neo4j.ogm.metadata.FieldInfo in project neo4j-ogm by neo4j.

the class LoadOneDelegate method load.

public <T, ID extends Serializable> T load(Class<T> type, ID id, int depth) {
    ClassInfo classInfo = session.metaData().classInfo(type.getName());
    if (classInfo == null) {
        throw new IllegalArgumentException(type + " is not a managed entity.");
    }
    final FieldInfo primaryIndexField = classInfo.primaryIndexField();
    if (primaryIndexField != null && !primaryIndexField.isTypeOf(id.getClass())) {
        throw new IllegalArgumentException("Supplied id does not match primary index type on supplied class " + type.getName());
    }
    if (primaryIndexField == null && !(id instanceof Long)) {
        throw new IllegalArgumentException("Supplied id must be of type Long (native graph id) when supplied class " + "does not have primary id " + type.getName());
    }
    Optional<String> labelsOrType = session.determineLabelsOrTypeForLoading(type);
    if (!labelsOrType.isPresent()) {
        logger.warn("Unable to find database label for entity " + type.getName() + " : no results will be returned. Make sure the class is registered, " + "and not abstract without @NodeEntity annotation");
        return null;
    }
    QueryStatements<ID> queryStatements = session.queryStatementsFor(type, depth);
    PagingAndSortingQuery qry = queryStatements.findOneByType(labelsOrType.get(), convertIfNeeded(classInfo, id), depth);
    GraphModelRequest request = new DefaultGraphModelRequest(qry.getStatement(), qry.getParameters());
    return session.doInTransaction(() -> {
        try (Response<GraphModel> response = session.requestHandler().execute(request)) {
            new GraphRowModelMapper(session.metaData(), session.context(), session.getEntityInstantiator()).map(type, response);
            return lookup(type, id);
        }
    }, Transaction.Type.READ_ONLY);
}

Example 27 with FieldInfo

use of org.neo4j.ogm.metadata.FieldInfo in project neo4j-ogm by neo4j.

the class SaveEventDelegate method children.

// for a given object parent, returns a list of objects referenced by this parent, i.e. its children
// at this stage, these children may or may not represent related nodes in the graph to the parent node
// We'll figure that out later.
private List<Object> children(Object parent) {
    List<Object> children = new ArrayList<>();
    ClassInfo parentClassInfo = this.session.metaData().classInfo(parent);
    if (parentClassInfo != null) {
        for (FieldInfo reader : parentClassInfo.relationshipFields()) {
            Object reference = reader.read(parent);
            if (reference != null) {
                CollectionUtils.iterableOf(reference).forEach(children::add);
            }
        }
    }
    return children;
}

Example 28 with FieldInfo

use of org.neo4j.ogm.metadata.FieldInfo in project neo4j-ogm by neo4j.

the class SessionDelegate method resolvePropertyName.

private String resolvePropertyName(Class entityType, String propertyName) {
    ClassInfo classInfo = session.metaData().classInfo(entityType.getName());
    FieldInfo fieldInfo = classInfo.propertyFieldByName(propertyName);
    if (fieldInfo != null && fieldInfo.getAnnotations() != null) {
        AnnotationInfo annotation = fieldInfo.getAnnotations().get(Property.class);
        if (annotation != null) {
            return annotation.get(Property.NAME, propertyName);
        }
    }
    return propertyName;
}

Example 29 with FieldInfo

use of org.neo4j.ogm.metadata.FieldInfo in project neo4j-ogm by neo4j.

the class RelationshipDeleteStatements method delete.

@Override
public CypherQuery delete(Long id, Object object, ClassInfo classInfo) {
    FieldInfo versionField = classInfo.getVersionField();
    Long version = (Long) versionField.read(object);
    OptimisticLockingConfig optimisticLockingConfig = new OptimisticLockingConfig(1, classInfo.staticLabels().toArray(new String[] {}), versionField.property());
    Map<String, Object> params = new HashMap<>();
    params.put("id", id);
    params.put("version", version);
    params.put("type", "rel");
    return new DefaultRowModelRequest("MATCH (n)-[r0]->() " + "  WHERE ID(r0) = $id AND r0.`" + versionField.property() + "` = $version " + "SET " + " r0.`" + versionField.property() + "` = r0.`" + versionField.property() + "` + 1 " + "WITH r0 " + " WHERE r0.`" + versionField.property() + "` = $version + 1 " + "DELETE r0 " + // Use DISTINCT because node may have multiple relationships
    "RETURN DISTINCT ID(r0) AS id", params, optimisticLockingConfig);
}

Example 30 with FieldInfo

use of org.neo4j.ogm.metadata.FieldInfo in project neo4j-ogm by neo4j.

the class AnnotatedFieldNonAnnotatedSetterAndNonSetterTest method shouldPreferAnnotatedFieldOverNonAnnotatedSetterAndNonSetter.

@Test
public void shouldPreferAnnotatedFieldOverNonAnnotatedSetterAndNonSetter() {
    ClassInfo classInfo = this.domainInfo.getClass(End.class.getName());
    RelEntity relEntity = new RelEntity();
    Set<RelEntity> parameter = new HashSet();
    parameter.addAll(Arrays.asList(relEntity));
    FieldInfo objectAccess = EntityAccessManager.getRelationalWriter(classInfo, "REL_ENTITY_TYPE", Relationship.Direction.INCOMING, relEntity);
    assertThat(objectAccess).as("The resultant object accessor shouldn't be null").isNotNull();
    assertThat(objectAccess instanceof FieldInfo).as("The access mechanism should be via the field").isTrue();
    End end = new End();
    objectAccess.write(end, parameter);
    assertThat(parameter).isEqualTo(end.getRelEntities());
}